CN209840270U - Ceiling type air conditioner indoor unit - Google Patents

Abstract

The utility model provides a machine in suspension type air conditioning for hoist and mount are at indoor roof, with to indoor supply cold wind or hot-blast when the operation, it includes: a housing for direct or indirect attachment to a roof; and an illumination member mounted on the housing to illuminate the room when energized. The utility model discloses satisfied the diversified demand of user to the machine in the air conditioning, and had the illumination function, promoted user experience, simultaneously because of need not to establish lamps and lanterns in addition indoor, can avoid the machine in the air conditioning and the problem that the position conflicts appears in the lamp.

Description

Ceiling type air conditioner indoor unit

Technical Field

The utility model relates to an air conditioning technology field, in particular to machine in suspension type air conditioning.

Background

Most of the existing household air-conditioning indoor units are wall-mounted type and floor type, and although the structure of the air-conditioning indoor unit is improved by a merchant, the product is difficult to change essentially and cannot meet the diversified requirements of users.

In addition, the existing air-conditioning indoor unit basically adopts a cross-flow fan, the air outlet direction is right ahead, although the air deflector is used for guiding the air left and right, and the swing blade is used for guiding the air up and down, the air-conditioning indoor unit is limited by a volute structure, the left and right air supply angle is usually less than 80 degrees, and the up and down air supply angle is usually less than 100 degrees. Therefore, the existing indoor unit has fewer air supply directions and very limited air supply range.

Moreover, current crossflow fans are primarily forward-facing blades that periodically impact the passing airflow, creating significant rotational noise. The volute is matched with the fan to achieve an air supply effect, and the front volute tongue and the rear volute tongue can impact airflow to generate strong turbulence noise. In the prior art, the noise quality is hardly improved obviously.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim is at least to solve one of the above-mentioned defect that prior art exists, provides a machine in suspension type air conditioning to satisfy the diversified demand of user to the machine in the air conditioning.

The utility model discloses a further purpose makes machine in suspension type air conditioning have the illumination function to promote user experience, simultaneously because of need not to establish lamps and lanterns in addition indoor, can avoid machine in the air conditioning and lamp problem that the position conflicts appears.

The utility model discloses a further purpose reduces the air supply noise, promotes the noise quality, makes indoor set inner structure compacter to promote the heat exchange efficiency of heat exchanger.

Particularly, the utility model provides a machine in suspension type air conditioning for hoist and mount are at indoor roof, to indoor supply cold wind or hot-blast to when the operation, and it includes: a housing for direct or indirect attachment to a roof; and an illumination member mounted on the housing to illuminate the room when energized.

Optionally, the illumination member is mounted on the bottom wall of the housing so as to be downwardly illuminated.

Optionally, the lighting component is attached to the inner side of the bottom wall of the shell, and when the lighting component is powered on, light irradiates the outside of the shell through the bottom wall of the shell; or the lighting component is attached to the outer side of the bottom wall of the shell.

Optionally, the bottom surface of the shell is provided with an air inlet, and the side surface of the shell is provided with at least one air outlet; the lighting component is annular and surrounds the air inlet.

Optionally, the ceiling type air conditioner indoor unit further includes: the laminar flow fan is arranged in the shell with a rotation axis extending vertically, sucks air from the axial bottom of the laminar flow fan during operation, generates laminar flow wind by utilizing the viscosity effect of the air and blows the laminar flow wind outwards along the radial direction of the laminar flow fan; and a heat exchanger disposed within the housing; when the laminar flow fan operates, indoor air is promoted to enter the shell from the air inlet, and exchanges heat with the heat exchanger to form heat exchange air, and the heat exchange air is blown back to the indoor space through the air outlet.

Optionally, the laminar flow fan comprises: a plurality of annular discs which are arranged in parallel at intervals, fixedly connected with each other, and vertically extended and collinear in axis; the circular disk is positioned at the top of the laminar flow fan, arranged in parallel with the annular disk at the uppermost side at intervals and indirectly fixedly connected with the annular disk, and the center of the circular disk is sunken downwards to form a containing cavity; and the motor is directly or indirectly fixed on the shell and extends into the containing cavity, and the rotating shaft of the motor is connected with the circular disk so as to drive the circular disk to rotate, so that the plurality of annular disks are driven to rotate, and the air boundary layers on the surfaces of the plurality of annular disks are driven by the plurality of annular disks to radially rotate from inside to outside due to the viscous effect to form laminar air.

Alternatively, the heat exchanger is in the form of a ring plate having an axis extending in the vertical direction, and which surrounds the laminar flow fan radially outside thereof.

Optionally, the ceiling type air conditioner indoor unit further includes: a support plate installed inside the case; the heat exchanger is arranged on the supporting plate to be supported by the supporting plate; and the periphery of the supporting plate is connected with the inner wall of the shell, and the center of the supporting plate is provided with a ventilation opening which is opposite to the air inlet so as to allow the air inlet to pass through.

Optionally, the ceiling type air conditioner indoor unit further includes: the mounting plate is fixedly arranged on the upper side in the shell; the bracket comprises a horizontally arranged supporting ring and a plurality of connecting arms extending upwards from the edge of the supporting ring, and the connecting arms are detachably connected to the mounting plate; and the motor is arranged on the upper side of the supporting ring to be supported by the supporting ring, and the rotating shaft of the motor extends downwards from the center of the supporting ring.

Optionally, the inner circle diameters of the plurality of annular disks are sequentially reduced along the axial air inlet direction of the laminar flow fan.

The utility model discloses a hoist and mount in suspension type air conditioning machine is on the roof, compares in traditional wall-hanging air conditioning machine and the interior machine pattern of console mode air conditioning novel more pleasing to the eye, has satisfied user diversified demand. And, the casing is provided with a lighting component, so that the ceiling type air conditioner indoor unit has a lighting function. At night, the indoor unit turns on the light, the appearance is very attractive, and the user experience is very high. Meanwhile, other lamps do not need to be additionally arranged on the roof, the lamp is not blocked, and a user can select the ceiling type indoor unit to be installed at any position of the roof.

Further, the utility model discloses a hoist and mount in suspension type air conditioning machine is on the roof, and whole casing side is whole to be shown outside, just so can arrange a plurality of air outlets in the side to realize two sides, trilateral, four sides air-out circumference 360 multi-direction air supplies such as even, air supply range is very big.

Further, the utility model discloses a machine adopts laminar flow fan in suspension type air conditioning, and it realizes that the annular does not have the dead angle air-out based on the laminar flow principle, is convenient for realize the multi-direction air supply of machine in the indoor. And the laminar flow fan applies work by utilizing the viscosity of the air boundary layer, the annular disc is basically parallel to the flowing direction of the air flow, and the impact air flow cannot be disturbed strongly to generate violent vortex, so that the noise is greatly reduced, the noise quality is excellent, and the user experience is improved.

Further, the utility model discloses a machine in suspension type air conditioning sets up the heat exchanger in the radial outside of laminar flow fan, and need not to set up it in laminar flow fan top or below, can practice thrift the inner space of machine in suspension type air conditioning like this, makes its structure compacter, makes the complete machine volume of indoor set littleer. And, because of the heat exchanger surrounds laminar flow fan, make laminar flow fan's air current can more fast comprehensively pass through the heat exchanger surface, make the heat transfer volume and the heat exchange efficiency of heat exchanger all have very big promotion.

Further, the utility model discloses an among the suspension type air conditioning indoor set, along laminar flow fan's axial air inlet direction, the interior circle diameter of a plurality of annular discs diminishes in proper order. Thus, the inlet air flow can flow to each annular disc more uniformly and smoothly, the air quantity is increased, and the operating efficiency of the laminar flow fan is improved.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of a ceiling type air conditioner indoor unit according to an embodiment of the present invention;

fig. 2 is a schematic exploded view of the ceiling type air conditioner indoor unit shown in fig. 1;

fig. 3 is a sectional view taken along a vertical plane of the ceiling type indoor unit of the air conditioner shown in fig. 1;

FIG. 4 is an enlarged schematic view of the fixture of FIG. 2;

FIG. 5 is a schematic diagram of the air supply principle of the laminar flow fan;

FIG. 6 is a bottom perspective view of a laminar flow fan;

FIG. 7 is a schematic cross-sectional view of a plurality of annular disks of a laminar flow fan;

fig. 8 is a schematic view of the air circulation of a laminar flow fan according to an embodiment of the present invention;

fig. 9 is a schematic air circulation diagram of a laminar flow fan according to another embodiment of the present invention;

FIG. 10 is a schematic diagram showing the relationship between the gradual change of the pitch of a plurality of annular disks and the air volume and the air pressure of a laminar flow fan.

Detailed Description

A ceiling type air conditioning indoor unit according to an embodiment of the present invention will be described with reference to fig. 1 to 10. Where the orientations or positional relationships indicated by the terms "front", "back", "upper", "lower", "top", "bottom", "inner", "outer", "lateral", etc., are based on the orientations or positional relationships shown in the drawings, they are merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

The utility model discloses machine in ceiling type air conditioning is used for hoisting at indoor roof, constitutes vapor compression refrigeration cycle system with air condensing units (not shown) together, to indoor supply cold wind/hot-blast, realizes the refrigeration/heating to the indoor environment.

Fig. 1 is a schematic structural view of a ceiling type air conditioning indoor unit according to an embodiment of the present invention, fig. 2 is an exploded schematic view of the ceiling type air conditioning indoor unit shown in fig. 1, and fig. 3 is a sectional view of the ceiling type air conditioning indoor unit shown in fig. 1 cut along a vertical plane.

As shown in fig. 1 to 3, a ceiling type air conditioning indoor unit according to an embodiment of the present invention may generally include a casing 100 and a lighting part 900. The casing 100 is used to be directly or indirectly connected to a roof, and the outside of the casing constitutes the external appearance of the ceiling type air conditioning indoor unit and the inside thereof defines a receiving space to receive the components of the ceiling type air conditioning indoor unit. The illumination unit 900 is installed on the casing 100, and is powered on to illuminate the indoor space when the ceiling type air conditioner indoor unit is powered on. The lighting component 900 may be one lamp or a combination of multiple lamps. Therefore, the ceiling type air conditioner indoor unit has the lighting function. At night, the indoor unit turns on the light, the appearance is very attractive, and the user experience is very high. Meanwhile, other lamps do not need to be additionally arranged on the roof, the lamp is not blocked, and a user can select the ceiling type indoor unit to be installed at any position of the roof.

The illumination member 900 may be located at any position of the housing, such as a bottom surface, a side surface. However, in order to facilitate downward light irradiation, the lighting unit 900 may be optionally installed on the bottom wall of the housing 100. Fig. 1 illustrates the lamp light irradiation direction by hollow arrows. Specifically, the lighting part 900 may be attached to the inner side of the bottom wall of the casing 100, and when the lighting part is turned on, light may be irradiated to the outside of the casing 100 through the bottom wall of the casing 100, so that the light may be more soft. At least the bottom wall of the housing 100 corresponding to the lighting unit 900 should be made of a material capable of transmitting light. In addition, the lighting part 900 may be optionally attached to the outer side of the bottom wall of the housing 100, which facilitates replacement and maintenance of the lighting part 900.

As shown in fig. 2 and 3, the bottom surface of the casing 100 may be provided with an air inlet 110, and the side surface thereof may be provided with at least one air outlet 120, so as to realize air inlet at the bottom and air outlet from the side surface. At this time, the lighting component 900 may also be in an annular shape, which surrounds the air inlet 110, so as to make the bottom appearance of the ceiling type air conditioner indoor unit more beautiful without affecting the opening of the air inlet 110.

The quantity of air outlets can be set as required. For example, if the indoor unit is installed on the roof near the side wall, only one air outlet may be provided. If the installation position of this indoor set is kept away from the side wall, if set up in roof central authorities, can set up if two, three, four etc. a plurality of air outlets towards the diverse to realize multidirectional air supply effects such as two-sided air-out, trilateral air-out, four sides air-out. Even, can make the casing be circular, its circumference full angle all sets up the air outlet and is used for the air-out to realize 360 all-round air supplies.

The utility model discloses a multi-direction air supply, and air supply range is very big. And, because of the ceiling type air conditioner indoor set mounted position is higher, its air-out coverage is also very big, does benefit to promote refrigeration/heating speed, and makes the user more comfortable.

An alternative configuration of the housing 100 is shown in fig. 2. The housing 100 is generally square and includes a bottom plate 150 and a top cover 130. The chassis 150 is square. The top cover 130 includes a square top plate 131 and four pillars 132 extending downward from four corners of the top plate 131. The bottom ends of the four upright posts 132 are detachably connected with four corners of the chassis 150 respectively. After the top cover 130 and the bottom plate 150 are mounted, the four pillars 132 divide the gap between the edge of the top cover 130 and the edge of the bottom plate 150 into four air outlets 120. The intake vent 110 is disposed on the chassis 150, and may be specifically configured in the form of an intake grille.

As shown in fig. 2 and 3, the ceiling type air conditioning indoor unit further includes a heat exchanger 400 and a laminar flow fan 300. The rotation axis of the laminar flow fan 300 is vertically extended and disposed in the housing 100, and a side circumferential surface thereof may be opposite to the air outlet 120. The laminar flow fan 300 operates to suck air from the axial bottom thereof and then generate laminar flow wind by utilizing the viscosity effect of the air and blow it radially outward.

As shown in fig. 2 and 3, the laminar flow fan 300 includes a plurality of annular disks 10, a motor 20, and a circular disk 30. A plurality of annular discs 10 are arranged in parallel at intervals and fixedly connected with each other, and the axes of the annular discs extend vertically and are collinear. The circular disk 30 is located on the top of the laminar flow fan 300, and is spaced apart from and indirectly fixedly connected to the uppermost annular disk 10. A plurality of connecting rods 40 may be provided to extend vertically, and one end of each connecting rod 40 is fixed to the circular disk 30, and then extends vertically to penetrate through the plurality of annular disks 10 and is fixed to each of the annular disks 10, so as to fix the plurality of annular disks 10 and the circular disk 30 to each other. The center of the circular disk 30 is depressed downward to form a receiving chamber 31. The motor 20 is directly or indirectly fixed to the casing 100 and extends into the containing cavity 31 for driving the plurality of annular disks 10 to rotate, so that an air boundary layer on the surfaces of the plurality of annular disks 10 is driven by the plurality of annular disks 10 to rotate and move radially from inside to outside due to a viscous effect to form laminar air.

Laminar flow fan 300 is the axial air inlet, radial air-out structure. It sucks air axially and blows out air radially to blow the air horizontally to each air outlet 120. Laminar flow fan 300 realizes the air-out of annular no dead angle based on the laminar flow principle. Moreover, the laminar flow fan 300 applies work by using the viscosity of the air boundary layer, the annular disk 10 is basically parallel to the flowing direction of the air flow, and the impact air flow is not disturbed strongly to generate severe vortex, so that the noise is greatly reduced, the noise quality is excellent, and the user experience is obviously improved. More specific principles and structures of the laminar flow fan 300 are described in more detail below.

The heat exchanger 400 is installed in the casing 100, and the heat exchanger 400 may be an evaporator of a vapor compression refrigeration cycle. When the laminar flow fan 300 operates, indoor air is forced to enter the housing 100 from the air inlet 110, exchanges heat with the heat exchanger 400, and is blown back into the room through the air outlet 120. The above process is cycled to achieve cooling/heating of the indoor environment. Fig. 3 illustrates the direction of the wind with arrows.

In some alternative configurations, such as fig. 2 and 3, the heat exchanger 400 may be generally in the form of a ring plate with an axis extending vertically. The ring, the square ring or the irregular ring can be designed into a non-closed ring plate shape with a notch in the circumferential direction based on process consideration. The heat exchanger 400 is made to surround the laminar flow fan 300 at the radially outer side of the laminar flow fan 300. Therefore, the fan does not need to be arranged above or below the laminar flow fan 300, the internal space of the ceiling type air conditioner indoor unit can be saved, the structure is more compact, and the volume of the whole machine is smaller. Moreover, the heat exchanger 400 surrounds the laminar flow fan 300, so that the airflow of the laminar flow fan 300 can more rapidly and comprehensively pass through the surface of the heat exchanger 400, and the heat exchange amount and the heat exchange efficiency of the heat exchanger 400 are greatly improved.

As shown in fig. 2, a supporting plate 800 is also fixedly installed in the housing 100. The tray 800 is mounted on the bottom side of the interior of the housing 100. The heat exchanger 400 is mounted on the pallet 800 to be supported thereby. The periphery of the supporting plate 800 is hermetically connected to the inner wall of the housing 100, and a ventilation opening 801 is formed in the center thereof opposite to the air inlet 110 to allow the intake air to flow to the bottom of the laminar flow fan 300 through the ventilation opening 801. In addition, as shown in fig. 3, after the intake air passes through the air inlet 801, all of the intake air is sucked into the laminar flow fan 300, and does not directly flow to the heat exchanger 400 without the action of the laminar flow fan 300, thereby affecting the heat exchange efficiency.

Fig. 4 is a schematic enlarged view of the bracket in fig. 2. Referring now to fig. 2 and 4, one manner of coupling the motor 20 to the housing 100 will be described.

The ceiling type air conditioning indoor unit includes a mounting plate 140 and a bracket 50. The mounting plate 140 is fixedly disposed at an inner upper side of the housing 100. The bracket 50 includes a horizontally disposed ring 51 and a plurality of connecting arms 52 (at least two, e.g., three as shown in fig. 4). The ring 51 has a hollow ring shape. The connecting arm 52 extends upward from the edge of the ring 51 and has an upper end detachably connected to the mounting plate 140, specifically, by means of a screw connection. The motor 20 is placed on an upper side of the holder ring 51 to be supported thereby, and the rotation shaft 21 of the motor 20 is protruded downwardly from the center of the holder ring 51. In this manner, the ring 51 bears the weight of the entire laminar flow fan 300 by supporting the motor 20. Mounting plate 140 has vent holes 141 therein to facilitate heat dissipation from motor 20.

As shown in fig. 1 and 3, at least one wind deflector 600 for guiding a wind direction is disposed at each wind outlet 120. The wind deflector 600 is elongated with a length direction parallel to the horizontal direction, and a rotation axis thereof is parallel to the length direction. When the plurality of wind deflectors 600 are provided, the plurality of wind deflectors 600 are arranged from top to bottom.

The wind deflector 600 can rotate to open or close the wind outlet 120, and the wind outlet direction of the wind outlet 120 can be changed by rotating the wind deflector 600 to different angles. The air deflector 600 can be driven to rotate by a motor, and specific driving mechanisms are not described in detail.

Fig. 5 is a schematic diagram of the blowing principle of the laminar flow fan. As shown in fig. 5, the blowing principle of the laminar flow fan is mainly derived from a "tesla turbine" found in nigula tesla. Tesla turbines mainly utilize the 'laminar boundary layer effect' or 'viscous effect' of the fluid to achieve the purpose of doing work on 'turbine disks'. When the annular disks 10 rotate at a high speed, air in the spaces of the annular disks 10 contacts and moves with each other, and an air boundary layer 13 close to the surface of each annular disk 10 is driven by the rotating annular disks 10 to rotate from inside to outside to form laminar air under the action of viscous shear force tau.

FIG. 6 is a bottom perspective view of a laminar flow fan; FIG. 7 is a schematic cross-sectional view of a plurality of annular disks of a laminar flow fan; fig. 8 is an air circulation diagram of a laminar flow fan according to an embodiment of the present invention.

As shown in fig. 7 and 8, an air inlet passage 11 is formed at the center of the annular disk 10 to allow external air to enter. A plurality of air outlet channels 12 are formed in gaps between the plurality of annular disks 10 for blowing out laminar air. The process of the laminar wind formed by the air boundary layer 13 rotating from inside to outside is centrifugal motion, so that the speed of the laminar wind leaving the air outlet channel 12 is higher than that of the laminar wind entering the air inlet channel 11.

The inner circle diameters of the respective annular disks of the laminar flow fan 300 may be made different from each other. For example, the inner circle diameters of the plurality of annular disks 10 are sequentially made smaller in the axial air intake direction of the laminar flow fan 300 (from the bottom to the top in the embodiment shown in fig. 1 to 8). In other words, the inner circle diameter of the annular disk 10 is gradually reduced in the direction in which the air flow flows in the intake air passage 11. Therefore, when air enters the air inlet channel 11 from top to bottom, the air flows at different positions in the radial direction respectively correspond to different annular disks 10, so that the air can flow to the annular disks more uniformly, the air is prevented from entering the annular disks at the lower side difficultly, and the effect of improving the air volume is finally achieved.

Fig. 9 is a schematic air circulation diagram of a laminar flow fan according to another embodiment of the present invention; FIG. 10 is a schematic diagram showing the relationship between the gradual change of the pitch of a plurality of annular disks and the air volume and the air pressure of a laminar flow fan.

In other embodiments, the spacing between adjacent annular disks of the laminar flow fan 300 may be different. As shown in fig. 9, the distance between each two adjacent annular disks 10 may be gradually increased along the axial air intake direction of the laminar flow fan 300. Or, the distance between each two adjacent annular disks is gradually increased along the direction of the air flow flowing in the air inlet channel 11. The inventor finds that the arrangement can effectively improve the air volume of the laminar flow fan through a plurality of experiments. With particular reference to fig. 10.

In fig. 10, the abscissa axis shock uniform expansion Plate distance increment refers to the variation of the distance between two adjacent annular discs 10 along the direction from bottom to top, the left ordinate axis Mass flow rate refers to the air volume, the right ordinate axis Pressure refers to the air Pressure, and the air Pressure refers to the Pressure difference between the inlet of the air outlet channel 12 and the inlet of the air inlet channel 11 of the laminar flow fan. Also, the variation amount of the pitch between two adjacent annular disks 10 is the same, that is, the increase or decrease of the pitch between two adjacent annular disks 10 is the same.

Specifically, fig. 10 is a schematic diagram illustrating the relationship between the gradual change of the pitch of the plurality of ring disks 10 and the air volume and the air pressure when the outer diameter, the inner diameter, the number, the thickness of the ring disks 10 and the rotation speed of the motor 20 of the laminar flow fan are all kept constant. When all the above mentioned parameters are kept unchanged, in the plurality of annular disks 10, the distance between every two adjacent annular disks 10 is gradually changed, so that the influence on the air volume is large, and the influence on the air pressure is small. When the variation of the distance between two adjacent annular disks 10 along the axial air inlet direction is a positive number, the distance is gradually increased; when the variation of the distance between two adjacent annular disks 10 along the axial air inlet direction is negative, the distance is gradually reduced. The variation of the interval between the adjacent two annular disks 10 can be made the same. As can be seen from fig. 10, when the variation of the distance between every two adjacent annular disks 10 in the plurality of annular disks 10 is-1 mm, 1mm and 2mm, the air volume and the air pressure of the laminar flow fan are both greatly improved.

Considering the air volume and the air pressure of the laminar flow fan together, it is preferable that the distance between every two adjacent annular disks 10 in the plurality of annular disks 10 is set to be gradually increased along the axial air intake direction. For example, the outer diameter of the ring disk 10 is 175mm, the inner diameter of the ring disk 10 is 115mm, the number of the ring disks 10 is 8, the thickness of the ring disk 10 is 2mm, and the rotation speed of the motor 20 is 1000rpm (revolutions per minute), at this time, the air volume and the air pressure of the laminar flow fan are considered comprehensively, for example, the distance between two adjacent ring disks 10 in 8 ring disks 10 may be set sequentially along the axial air inlet direction: 13.75mm, 14.75mm, 15.75mm, 16.75mm, 17.75mm, 18.75mm, 19.75 mm.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. A ceiling type air conditioning indoor unit for being suspended from an indoor roof to supply cool or hot air indoors during operation, comprising:

a housing for direct or indirect attachment to a roof; and

and the illuminating component is arranged on the shell to illuminate the indoor when being electrified and started.

2. The indoor unit of a ceiling type air conditioner as set forth in claim 1,

the illumination member is mounted on the bottom wall of the housing so as to be irradiated downward.

3. The indoor unit of a ceiling type air conditioner as set forth in claim 2,

the lighting component is attached to the inner side of the bottom wall of the shell, and light irradiates the outside of the shell through the bottom wall of the shell when the lighting component is powered on; or

The lighting component is attached to the outer side of the bottom wall of the shell.

4. The indoor unit of a ceiling type air conditioner as set forth in claim 2,

the bottom surface of the shell is provided with an air inlet, and the side surface of the shell is provided with at least one air outlet; and is

The lighting component is annular and arranged around the air inlet.

5. The indoor unit of a ceiling type air conditioner as set forth in claim 4, further comprising:

the laminar flow fan is arranged in the shell with a rotating axis extending vertically, sucks air from the axial bottom of the fan during operation, generates laminar flow wind by utilizing the viscosity effect of the air and blows the laminar flow wind outwards along the radial direction of the fan; and

a heat exchanger disposed within the housing;

when the laminar flow fan operates, indoor air is promoted to enter the shell from the air inlet to exchange heat with the heat exchanger to form heat exchange air, and the heat exchange air is blown to the indoor through the air outlet.

6. The indoor unit of a ceiling type air conditioner as set forth in claim 5, wherein the laminar flow fan comprises:

a plurality of annular discs which are arranged in parallel at intervals, fixedly connected with each other, and vertically extended and collinear in axis;

the circular disk is positioned at the top of the laminar flow fan, arranged in parallel with the annular disk at the uppermost side at intervals and indirectly fixedly connected with the annular disk, and the center of the circular disk is sunken downwards to form an accommodating cavity; and

and the motor is directly or indirectly fixed on the shell and extends into the containing cavity, the rotating shaft of the motor is connected with the circular disk so as to drive the circular disk to rotate, so that the plurality of annular disks are driven to rotate, and the air boundary layer on the surfaces of the plurality of annular disks is driven by the plurality of annular disks to rotate and move radially from inside to outside due to the viscous effect to form laminar air.

7. The indoor unit of a ceiling type air conditioner as set forth in claim 5,

the heat exchanger is in the shape of a ring plate with an axis extending in the vertical direction, and surrounds the laminar flow fan radially outside thereof.

8. The indoor unit of a ceiling type air conditioner as set forth in claim 7, further comprising:

a tray mounted inside the housing;

the heat exchanger is mounted on the pallet to be supported thereby; and is

The periphery of the supporting plate is connected with the inner wall of the shell, and the center of the supporting plate is provided with a ventilation opening which is opposite to the air inlet so as to allow the air inlet to pass through.

9. The indoor unit of a ceiling type air conditioner as set forth in claim 6, further comprising:

the mounting plate is fixedly arranged on the upper side in the shell; and

the bracket comprises a horizontally arranged supporting ring and a plurality of connecting arms extending upwards from the edge of the supporting ring, and the connecting arms are detachably connected to the mounting plate; and is

The motor is arranged on the upper side of the supporting ring to be supported by the supporting ring, and a rotating shaft of the motor extends downwards from the center of the supporting ring.

10. The indoor unit of a ceiling type air conditioner as set forth in claim 6,

and along the axial air inlet direction of the laminar flow fan, the diameters of the inner circles of the annular discs are sequentially reduced.